Rethinking Vibrational Stark Spectroscopy: Peak Shifts, Line Widths, and the Role of Non-Stark Solvent Coupling

• Published in: The journal of physical chemistry. B Vol. 127; no. 3; pp. 717 - 731
• Main Authors: Fica-Contreras, Sebastian M., Charnay, Aaron P., Pan, Junkun, Fayer, Michael D.
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 26.01.2023
• Subjects: B: Liquids; Chemical and Dynamical Processes in Solution

A vibration’s transition frequency is partly determined by the first-order Stark effect, which accounts for the electric field experienced by the mode. Using ultrafast infrared pump–probe and FT-IR spectroscopies, we characterized both the 0 → 1 and 1 → 2 vibrational transitions’ field-dependent pea...